Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa600f7fcb288ed0…

MALICIOUS

PDF

77.0 KB Created: 2020-11-25 01:36:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: bc4d35b8075133e093fe940b46de7f05 SHA-1: 117aa5dcd8459b3205dcff509e8cbd2e3f0f5ed3 SHA-256: aa600f7fcb288ed07f6c2668bc6165b69266133844354d46796d34568a25ba78
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by multiple heuristics, including a critical finding for a redirector link to 'ggtraff.ru'. The ML classifier also returned a high confidence score. The presence of embedded URLs and the ClamAV detection indicate a phishing or malware distribution attempt, likely using a spearphishing attachment vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ggtraff.ru/123?utm_term=mega+man+zero+1+cyber+elf+guide In PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/jefaneboteranu.pdfIn PDF document text
    • https://mozeduxazos.weebly.com/uploads/1/3/4/0/134018133/5544104.pdfIn PDF document text
    • https://ximazula.weebly.com/uploads/1/3/0/7/130738777/baxima_birirovu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/42e8b67f-61a9-47e2-8ea1-5f90e835545a/manual_de_documentacion_militar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e417127f-c697-4e47-b106-fdb84470542d/kevin_siembieda_wikipedia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/280fdf73-a3d4-4906-92dc-7aef784e6348/dominos_pizza_crust_ingredients.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/borderlands_2_conference_call_shift_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92c3bf35-a3de-4d1a-8121-9a469c03e584/tivananilarafelanirik.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/water_bottle_rocket_nose_cone_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/41544665964.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84de9c69-96ed-4e4e-a68c-892bb792454e/bedminster_elementary_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ba8320b-de4e-415b-ac46-4e4d1b17c889/mega_unblocked_games.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD881 2920 bytes
SHA-256: a986119c16e44081cc8e25afede66da4c613bf9b2bda1169c6dfb8b692a7cff1
font_01_sfnt_off0000e2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DA 5316 bytes
SHA-256: e77d748086b6d2fb9363097d8191f9ea294a88ba2ce49f6777decdfe6579093a
font_02_sfnt_off0000f4e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E6 10384 bytes
SHA-256: a4447d70841e25142027dd28fb10ad79c2296011c33ad9ba472ab95eeb0dce74
font_03_sfnt_off0001187b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1187B 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.